Pomona Electronics 6746A BNC Connector Plug 75 Ohm Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 6746A is a BNC connector plug designed for 75-ohm coaxial cable applications. This male pin connector features solder termination and is rated for free-hanging (in-line) mounting configurations. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs requiring compatible RF connectivity solutions.

Substiute Parts

6746A

Pomona ElectronicsIn Stock: 8746746A Datasheet

Current PartRFQ

HP75BNC10X

Switchcraft Inc.In Stock: 801HP75BNC10X Datasheet

SimilarRFQ

HP75BNC6X

Switchcraft Inc.In Stock: 989HP75BNC6X Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Pomona Electronics 6746A must maintain electrical and mechanical compatibility based on the following critical parameters:

Electrical Compatibility Requirements:

• Impedance: 75 Ohms (mandatory)
• Connector Style: BNC (mandatory)
• Connector Type: Plug, Male Pin (mandatory)
• Frequency - Max: 3 GHz or greater
• Voltage Rating: 500 V or greater
• Operating Temperature Range: -65°C ~ 165°C or broader

Mechanical Compatibility Requirements:

• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock
• Number of Ports: 1

Material and Compliance Requirements:

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99

The substitute parts identified (Switchcraft Inc. HP75BNC10X and HP75BNC6X) meet all mandatory electrical and mechanical parameters. The primary difference is the contact termination method: the original part uses solder termination with clamp shield termination, while the substitutes employ crimp termination for both center contact and shield. Both termination methods are valid for 75-ohm BNC applications and are interchangeable in system designs where the termination method can be accommodated.

Parameter Comparison

Engineering Selection Recommendations

Both Switchcraft Inc. substitute parts (HP75BNC10X and HP75BNC6X) are active products with current manufacturing status, providing supply chain continuity for the obsolete Pomona Electronics 6746A. All three connectors maintain identical electrical specifications (75-ohm impedance, 500 V rating, 3 GHz maximum frequency) and mechanical compatibility (BNC plug, male pin, bayonet lock, free-hanging mounting).

The primary selection criterion between the Pomona original and Switchcraft substitutes is termination method compatibility. The Pomona 6746A uses solder termination with clamp shield termination, while both Switchcraft alternatives employ crimp termination for center contact and shield. System designs currently using solder-terminated connections require either rework to accommodate crimp termination or continued sourcing of the Pomona part from remaining inventory (798 pcs available).

Both Switchcraft parts maintain full ROHS3 compliance, REACH unaffected status, and EAR99 export classification, ensuring regulatory equivalence. The HP75BNC6X is available in bulk packaging with 920 units in stock, while the HP75BNC10X is available with 730 units in stock. Both parts include ferrule components as specified in their product documentation.

Frequently Asked Questions (FAQ)

Q: Can the Switchcraft HP75BNC10X and HP75BNC6X be used interchangeably with the Pomona 6746A?

A: Both Switchcraft parts meet the electrical and mechanical specifications of the Pomona 6746A. The primary difference is termination method: Pomona uses solder/clamp termination while Switchcraft uses crimp termination. Interchangeability depends on whether your application can accommodate crimp-terminated connections.

Q: What is the difference between the Switchcraft HP75BNC10X and HP75BNC6X?

A: Both parts are electrically and mechanically identical 75-ohm BNC plugs with crimp termination. The primary differences are cable group compatibility (HP75BNC10X supports Belden 1506A; HP75BNC6X supports Belden 1695A) and packaging (HP75BNC6X is available in bulk). Selection depends on your specific cable type and quantity requirements.

Q: Are all three connectors rated for the same frequency range?

A: The Pomona 6746A is rated to 3 GHz maximum frequency. The Switchcraft substitutes meet or exceed this specification, making them suitable for applications within the 3 GHz frequency band.

Q: Do the substitute parts maintain the same temperature operating range?

A: Yes. All three connectors operate across the -65°C to 165°C temperature range, ensuring thermal compatibility in equivalent applications.

Q: What compliance certifications apply to these connectors?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Regulatory equivalence is maintained across all options.

Q: How do I select between solder and crimp termination?

A: Termination method selection depends on your assembly process and cable preparation capabilities. Solder termination (Pomona 6746A) requires soldering equipment and skills. Crimp termination (Switchcraft substitutes) requires crimp tooling and ferrule components. Both methods produce reliable 75-ohm connections when properly executed.